The company behind the restaurants Red Lobster and Olive Garden is feeling sick after being linked to the nationwide cyclospora outbreak.

As of Wednesday, the Centers for Disease Control and Prevention (CDC) had reported more than 500 cases of cyclospora—an intestinal illness—in 16 states. At least 30 people have been hospitalized as a result.

In a statement, Darden said, “Nothing we have seen prior to this announcement gave us any reason to be concerned about the products we've received from this supplier.” It also said that “it is completely safe to eat in our restaurants.”

At least two people in Iowa have filed lawsuits against Darden for the stomach issues they suffered after eating at Olive Garden. More are expected to come. And even though the CDC and Food and Drug Administration have only linked Darden to the outbreaks in Iowa and Nebraska, a Texas woman is suing the company for the intestinal issues she had after eating at a Dallas Olive Garden. A Darden spokesman told CNN that the company’s Texas restaurants don’t receive food from Taylor Farms de Mexico.